AU8957691A - Polyglycerols by bayer process - Google Patents

Polyglycerols by bayer process

Info

Publication number
AU8957691A
AU8957691A AU89576/91A AU8957691A AU8957691A AU 8957691 A AU8957691 A AU 8957691A AU 89576/91 A AU89576/91 A AU 89576/91A AU 8957691 A AU8957691 A AU 8957691A AU 8957691 A AU8957691 A AU 8957691A
Authority
AU
Australia
Prior art keywords
pct
date jun
bayer process
sec
polyglycerols
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
AU89576/91A
Other versions
AU644918B2 (en
Inventor
Reinhard Bunte
Jurgen Foll
Johannes Hachgenei
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of AU8957691A publication Critical patent/AU8957691A/en
Application granted granted Critical
Publication of AU644918B2 publication Critical patent/AU644918B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/14—Aluminium oxide or hydroxide from alkali metal aluminates
    • C01F7/144—Aluminium oxide or hydroxide from alkali metal aluminates from aqueous aluminate solutions by precipitation due to cooling, e.g. as part of the Bayer process
    • C01F7/145—Aluminium oxide or hydroxide from alkali metal aluminates from aqueous aluminate solutions by precipitation due to cooling, e.g. as part of the Bayer process characterised by the use of a crystal growth modifying agent other than aluminium hydroxide seed
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyethers (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Compounds Of Iron (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)

Abstract

PCT No. PCT/EP91/02251 Sec. 371 Date Jun. 7, 1993 Sec. 102(e) Date Jun. 7, 1993 PCT Filed Nov. 28, 1991 PCT Pub. No. WO92/10426 PCT Pub. Date Jun. 25, 1992.The invention concerns the production of aluminum trihydrate crystal by the Bayer process, by digesting ground bauxite, filtering off the red mud, cooling the filtrate, and crystallizing out the dissolved aluminum hydroxide as gibbsite. Before and/or during the crystallization, polyglycerines of the general formula H-(OCH2CHOH-CH2)n-OH, where n is an integer equal to or greater than 3, are added.
AU89576/91A 1990-12-07 1991-11-28 Polyglycerols by bayer process Ceased AU644918B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4039053 1990-12-07
DE4039053A DE4039053A1 (en) 1990-12-07 1990-12-07 POLYGLYCERINE IN THE BAYER PROCESS

Publications (2)

Publication Number Publication Date
AU8957691A true AU8957691A (en) 1992-07-08
AU644918B2 AU644918B2 (en) 1993-12-23

Family

ID=6419792

Family Applications (1)

Application Number Title Priority Date Filing Date
AU89576/91A Ceased AU644918B2 (en) 1990-12-07 1991-11-28 Polyglycerols by bayer process

Country Status (10)

Country Link
US (1) US5312603A (en)
EP (1) EP0560808B1 (en)
AT (1) ATE120435T1 (en)
AU (1) AU644918B2 (en)
BR (1) BR9107146A (en)
CA (1) CA2097934C (en)
DE (2) DE4039053A1 (en)
ES (1) ES2070524T3 (en)
GR (1) GR3015756T3 (en)
WO (1) WO1992010426A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5385586A (en) * 1993-03-24 1995-01-31 Nalco Chemical Company Liquor oxalate stabilizers
AU670000B2 (en) * 1994-03-17 1996-06-27 Nalco Chemical Company Liquid oxalate stabilizers
GB9800855D0 (en) 1998-01-15 1998-03-11 Allied Colloids Ltd Production of alumina
DE10009369A1 (en) * 2000-02-29 2001-08-30 Vaw Ver Aluminium Werke Ag Production of aluminum hydroxide gel, used e.g. as mordant, filler and pigment or in antihidrotic, toothpaste, paper, ceramics or abrasive, involves precipitation from diluted alkaline aluminate liquor, filtration, washing and drying
DE10113294A1 (en) * 2001-03-16 2002-09-19 Stockhausen Chem Fab Gmbh Formation of aluminum oxide hydrate crystals from caustic mother liquors
US7976820B2 (en) * 2005-06-23 2011-07-12 Nalco Company Composition and method for improved aluminum hydroxide production
US7955589B2 (en) * 2005-06-23 2011-06-07 Nalco Company Composition and method for improved aluminum hydroxide production
CN1321064C (en) * 2005-07-18 2007-06-13 贵阳铝镁设计研究院 Bayer process of cauticizing barium salt in mother liquid
US9284625B2 (en) * 2007-11-20 2016-03-15 Nalco Company Use of polyols as scale control reagents in the mining processes
US20100125156A1 (en) * 2008-11-14 2010-05-20 Smith Kevin W Condensation reactions for polyols
US8282689B2 (en) 2009-07-01 2012-10-09 Nalco Company Composition and method for enhancing the production of crystal agglomerates from a precipitation liquor
US8920768B2 (en) 2013-03-14 2014-12-30 Ecolab Usa Inc. Crystallization aids for bayer aluminum hydroxide
US9592456B2 (en) 2015-02-11 2017-03-14 Ecolab Usa Inc. Methods for enhancing production of aluminum hydroxide in an aluminum hydroxide production process
CN106241844A (en) * 2016-07-15 2016-12-21 牛太同 A kind of sandy alumina seeded precipitation additive

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2440378A (en) * 1946-09-13 1948-04-27 Aluminum Co Of America Treatment of sodium aluminate solutions
US3397953A (en) * 1965-03-04 1968-08-20 Atlas Chem Ind Flocculating agent
JPS6046923A (en) * 1983-08-23 1985-03-14 Mitsubishi Chem Ind Ltd Boehmite
US4608237A (en) * 1985-04-24 1986-08-26 Nalco Chemical Company Use of polymers in alumina precipitation in the Bayer process of bauxite beneficiation
GB8519107D0 (en) * 1985-07-29 1985-09-04 Allied Colloids Ltd Flocculation process
US4822593A (en) * 1986-12-11 1989-04-18 Aluminum Company Of America Control of form of crystal precipitation of aluminum hydroxide using cosolvents and varying caustic concentration
US4737352A (en) * 1987-04-09 1988-04-12 Nalco Chemical Company Use of surfactants in alumina precipitation in the bayer process
DE3876615D1 (en) * 1988-02-11 1993-01-21 Vaw Ver Aluminium Werke Ag METHOD FOR PRODUCING FILLERS AND FLAME RETARDANT AGENTS BASED ON ALUMINUM HYDROXIDE IN THE FORM OF HYDRARGILLITE.
US5106599A (en) * 1990-02-06 1992-04-21 Nalco Chemical Company Alumina crystal growth additive
DE69125659T2 (en) * 1990-06-25 1997-07-31 Nalco Australia Modification of crystal growth

Also Published As

Publication number Publication date
GR3015756T3 (en) 1995-07-31
EP0560808A1 (en) 1993-09-22
EP0560808B1 (en) 1995-03-29
ES2070524T3 (en) 1995-06-01
DE4039053A1 (en) 1992-06-11
US5312603A (en) 1994-05-17
CA2097934C (en) 2002-04-09
AU644918B2 (en) 1993-12-23
DE59105062D1 (en) 1995-05-04
WO1992010426A1 (en) 1992-06-25
BR9107146A (en) 1993-11-16
ATE120435T1 (en) 1995-04-15
CA2097934A1 (en) 1992-06-08

Similar Documents

Publication Publication Date Title
AU644918B2 (en) Polyglycerols by bayer process
AU5245490A (en) Recovery of rare earth elements from bayer process red mud
CA2502856A1 (en) Intermediates for retroviral protease inhibiting compounds
NO971037D0 (en) Triphenylethylenes to protect against osteoporosis treatment
TW263499B (en)
BR8801621A (en) PROCESS TO REDUCE THE PERCENTAGE OF SMALL SIZE ALUMINUM TRIHYDRATE CRYSTALS DURING CRYSTALLIZATION FROM A LIQUOR OF THE BAYER PROCESS
CA2110443A1 (en) Guanidinealkyl-1,1-bisphosphonic acid derivatives, process for their preparation and their use
AU3219793A (en) Process for the removal of sodium oxalate from solutions of sodium aluminate from the bayer cycle
FR2679242B1 (en)
TW290545B (en)
OA09761A (en) Desilication of bayer process solutions.
PH31300A (en) Preparation of alpha aryl gamma-butyrolactones.
WO2001030759A3 (en) Sodium-hydrogen exchanger type 1 inhibitor crystals
JPS57212286A (en) Production of fluorescent substance
JPS57191228A (en) Production of alumina of low alpha-raw dose
TW271439B (en)
HUT73487A (en) New process for the preparation of condensed carbapeneme derivatives
JPS55147237A (en) Separation of optically active body and racemic body from partially optically active body of mandelic acid
SU360837A1 (en) Method of desilicification of aluminate solutions
Cosoric et al. The Influence of Lime on the Leaching of Boehmitic Bauxite
AU590682C (en) Method of and apparatus for thickening red muds derived from bauxite and similar slurries
HUT46596A (en) Process for producing aluminium hydroxide of large grain size
AU6954287A (en) Method of and apparatus for thickening red muds derived from bauxite and similar slurries
RU93025278A (en) COLORED CORUNA MONOCRYSTAL
PL161166B1 (en) Method of obtaining high purity hydrochloride

Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired